Sometimes when you insert a memory card into your computer , you may get a message saying that the card needs to be formatted or that the card is locked. This is called the Card Locked Error and can be caused mainly by four reasons :
- Card is not compatible with your camera
- Write protection on the card
- A card error
- A problem with the card reader in the camera itself
In this tutorial , we will cover these four causes and how to fix it, but before you start these procedures, ensure if at all possible that all data on the card that needs to be kept is backed up.REASON NO 1 - Card is not compatible with your camera
When SD cards were implemented , it was planned that the max capacity would be 2Gb. But in 2007 , the SDHC
card which ranges from 2Gb to 32Gb was introduced to the market. These two standards only differ slightly and are even of the same design but a SDHC
card will not work in a camera which only supports SD cards.
A good rule of thumb is :
- If your camera was made in 2007 it will not be compatible
- If your camera was made in 2008 , it might be compatible so check it out online (CLICK HERE) or ask someone on Fixya.
- If your camera was made after 2008 , it will probably be SDHC compatible.
If you are unsure whether your device is compatible , go to THIS SANDISK PAGE
and use the compatibility tool on the right to check. Most products are listed here.
If you are still unsure , check the manual and packaging of your device and look for the SDHC
logo which looks like this :
The normal SD logo looks like this one on the bottom and if displayed alone means that your camera only accepts SD cards.
For more information about this , see this PDF file from SANDISK
explaining the differences between SD and SDHC
.REASON NO 2 - Write protection on the card
SD and SDHC
cards normally have a function for locking or protecting the card. This is to guard against overwriting or deleting data you did not intend to delete. To unlock the card do the following :
REASON NO 3 - A card error
- Remove the card from the camera or device.
- Locate the write protection or lock switch.
- Move the lock/protection switch to the top position like on the card shown in the image.
- Reinsert the card into the device and use.
This error can mainly be diagnosed by placing the sd/sdhc card into another camera for testing. If the other camera works fine , it's your camera.
If the card also does not work on the other camera , it's your memory card at fault.
This is normally due to a failed memory module in the card and cannot be repaired.
REASON NO 4 - A problem with the card reader in the camera itself
If the card works in another camera . the problem is with your card reader in your camera.
If you open you SD slot of your device and look inside with a sharp light, you should be able to see on the left side of the slot there is a little copper or spring steel lever switch.
This switch work as follows:
- 1. When no card is inserted / no write protection , the switch is open and thus the protection is switched off.
- 2. When a locked card is inserted , the tab is depressed into the opening in the sd card completing a electric circuit and tells the camera that the card is locked.
Contrary to popular belief ,the little tab on the SD card is not an electronics witch and does not physically influence the card operation itself. If you put a locked card into a camera without a SD lock switch , you would still be able to use the card normally.
What normally happens is that over time this switch bends and eventually closes the protection circuit even when the card inserted is not protected.
It is difficult to fix this switch because of space limitations in the SD card slot.
Look into the SD slot and if you can see the switch , use a sewing needle or a toothpick to pull the little tab back toward the base of the camera by about 1mm being careful not to bend it. If this does not work , try bending it back by a little bit . If this does not solve the problem ,try bending it slightly more either to the back or to the front.
If this does not resolve your problem , there might be a short in the switch circuit and the camera will need to be disassembled to resolve this error. This should cost no more than $50-$150 depending on the camera model.
Go to www.getflashmemory.info
for more information relating to this particular problem.
If you would like to get a repair estimate from your camera manufacturer ,please click on the applicable link below for the contact page of your camera manufacturer.KodakSonyPanasonicSamsungFijitsuCanon USACanon GlobalNikonPhillips
Please rate this tip if you found it useful in diagnosing and fixing your camera or other SD device.